Add support for OpenSSL Next Protocol Negotiation

net/socket/ssl_client_socket_openssl.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_SOCKET_SSL_CLIENT_SOCKET_OPENSSL_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_OPENSSL_H_
 #pragma once
 
+#include <string>
+
 #include "base/scoped_ptr.h"
 #include "net/base/cert_verify_result.h"
 #include "net/base/completion_callback.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ssl_config_service.h"
 #include "net/socket/ssl_client_socket.h"
 #include "net/socket/client_socket_handle.h"
 
 typedef struct bio_st BIO;
 typedef struct evp_pkey_st EVP_PKEY;
@@ skipping 18 matching lines @@
                          const HostPortPair& host_and_port,
                          const SSLConfig& ssl_config);
   ~SSLClientSocketOpenSSL();
 
   const HostPortPair& host_and_port() const { return host_and_port_; }
 
   // Callback from the SSL layer that indicates the remote server is requesting
   // a certificate for this client.
   int ClientCertRequestCallback(SSL* ssl, X509** x509, EVP_PKEY** pkey);
 
+  // Callback from the SSL layer to check which NPN protocol we are supporting
+  int SelectNextProtoCallback(unsigned char** out, unsigned char* outlen,
+                              const unsigned char* in, unsigned int inlen);
+
   // SSLClientSocket methods:
   virtual void GetSSLInfo(SSLInfo* ssl_info);
   virtual void GetSSLCertRequestInfo(SSLCertRequestInfo* cert_request_info);
   virtual NextProtoStatus GetNextProto(std::string* proto);
 
   // ClientSocket methods:
   virtual int Connect(CompletionCallback* callback);
   virtual void Disconnect();
   virtual bool IsConnected() const;
   virtual bool IsConnectedAndIdle() const;
@@ skipping 82 matching lines @@
   // Used for session cache diagnostics.
   bool trying_cached_session_;
 
   enum State {
     STATE_NONE,
     STATE_HANDSHAKE,
     STATE_VERIFY_CERT,
     STATE_VERIFY_CERT_COMPLETE,
   };
   State next_handshake_state_;
+  NextProtoStatus npn_status_;
+  std::string npn_proto_;
   BoundNetLog net_log_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_OPENSSL_H_